Climate change is hurting pregnant women and their babies, according to an article published last week in JAMA Network Open, an open-access online medical journal published by the American Medical Association.
“Studies across diverse US populations were identified that reported an association of PM2.5, ozone, and heat exposure with the adverse obstetrical outcomes of preterm birth, low birthweight at term, and stillbirth,” the article says. “PM2.5” is fine particulate matter pollution—tiny solid particles and liquid droplets, 30 times smaller than the diameter of a human hair, that float in the air.
The research team reviewed 57 previously published studies that collectively included almost 33 million births. Bruce Bekkar, a retired California obstetrician and a co-author of the article, said the team found that generations of babies have been “weakened from birth.”
Common climate impacts
“When you talk about climate, people think about severe weather, big storms, or huge fires,” Bekkar told The Guardiannewspaper. “But we wanted to talk about the impacts that are common and widespread and ongoing and also are rarely attributed to the climate crisis.”
The researchers found that women with asthma and African American women were at greater risk. “Social determinants of health, including residence in urban areas with higher exposure to air pollutants and long-term high levels of stress, are known to contribute to adverse obstetrical outcomes,” the article says.
“Further research is needed to further identify at-risk populations, high-exposure geographic areas, and effects of seasonality.”
What to do
Bekkar said pregnant women should avoid prolonged exposure to heat and pollution. “The more time they can spend in air-conditioned places that have filtered air, the better for their pregnancy outcome,” he said.
He also suggested that women’s advocates demand that government officials address the problems: “Reducing air pollution and fighting climate change is a matter of their children’s survival and health.”
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